The Sun

Q.

Write five lines on the sun

Q.

Why does the Sun appear to be bigger and brighter than all other stars?

Q. The radius of planet is twice the radius of earth. Both have almost equal average mass density. If VP and Ve are escape velocity of planet and earth, then find the velocity relation

Q. How many light minutes away is earth from the sun ? Express this distance in kilometres .

Q. State three Kepler's law of planetary motion. [3 MARKS]

Q.

Which is the main source of heat and light energy for all the members of the solar system (like planets and satellites, etc.)?

Q.

Question 1

Morning star is the name given to

(a) pole star
(b) planet Jupiter
(c) star Sirius
(d) planet Venus

Q. Sun is the largest star in the universe.

1. False
2. True

Q.

Why stars are more clearly visible in the night sky of a village rather than in cities?

Q. Pole star is a member of the solar system.

1. True
2. False

Q. Which of the statements about the Sun are correct?

1. Nearest star to Earth
2. Biggest star in the universe
3. Main source of heat and light
4. Main source of minerals

Q. Why there is no moon in mercury and venus ?

Q. If an object travels at a speed which is equal to the speed of light will its mass increase? And will its weight be infinity?

Q. How can we calculate light year in kilometers?

Q. The stars are present in the sky during the day-time.

1. True
2. False

Q.

Can a star orbit a star

Is our Sun orbiting another star

Q. what is speed of light

Q. What os the speed of light? How many kilometers does it travel in one hour?

Q. Which star (except the sun) is closest to our earth
acording to me, it should be Proxima Centauri which is 4.22 light years away but in few of the books I have read that it is Alpha Centauri....
So which one is correct???

Q. What is the reason for the rings in saturn to always stay in the ring shape

Q.

We are not able to see the stars during the daytime. Why?

1. Both B and C.

2. Because stars don't exists during the daytime.

3. Because of the brightness of sunlight.

4. Because they are behind the earth during the daytime.

Q.

Sun is a ___ object.

Q. is the source of light and heat for all the planets, including the Earth, in our solar system.

1. Sun
2. Moon
3. Mercury
4. Jupiter

Q. Question 16

Meteors are not visible during the daytime. Explain the reason.

Q. The day on which the moon appears as a circular disc is known as the.

1. full moon day
2. new moon day
3. eclipse
4. lunar day

Q.

Name a star having a system of planets with life on one of its planets.

Q.

Our milky way galaxy consists of millions of stars that make it more shiny in the black sky. Which powerful source of energy has turned The Identity of Milky Way into a huge Galaxy consisting of all the all the celestial bodies on a proper place with proper atmosphere.

Q. What are the components of the a black hole in the universe?How are they formed? What happens if a rocket, often lost its destination and enters the black hole?

Q. If you are the sun, write about your properties in your own words.

Q.

Sun is the ultimate source of light.

1. True
2. False